Roger G. Mills
Analyst · JMP Securities
Thank you, Tom, and good afternoon. This continues to be a busy and exciting time for all of us here at ACADIA. As Uli mentioned, we're very pleased to have the -020 Study data featured, along with an accompanying editorial, in last week's online issue of the renowned peer-reviewed journal, The Lancet. As you know, based on these data, we established an expedited path to registration earlier this year. Our team has been focused on completing the remaining activities in our pimavanserin PDP development program that are needed for submission of an NDA. This includes final aspects of the CMC development, which is a rate-limiting activity in our PDP program, including stability testing of pimavanserin registration batches. I'm pleased to report today that our CMC program activities have progressed according to plan. Building completion of the development and validation of the necessary analytical methods for the pimavanserin drug product during the third quarter, our 3 registration batches of pimavanserin were successfully manufactured at the commercial launch scale. Importantly, the registration stability testing on these drug product batches was initiated in October. This registration stability program is designed to comply with ICH guidelines and meet the regulatory filing requirements for major markets worldwide. Meanwhile, we are also underway with the remaining supportive studies which include customary short-term, drug-drug interaction studies and expect these activities to be completed in advance of our planned NDA submission. We're also continuing to conduct our Phase III PDP open-label safety extension trial referred to as the -015 Study. You may recall that this study has allowed us to generate a large amount of valuable, long-term safety data regarding the use of pimavanserin in patients with PDP. This summer, we presented interim data from the -015 Study at the 17th International Congress of Parkinson's Disease and Movement Disorders. These interim data indicate that long-term administration of pimavanserin continues to be generally safe and well-tolerated in this often elderly and fragile patient population. In addition, these data suggest the duration of effect in PDP patients may be maintained for longer than the 6 weeks investigated in our pivotal -020 Study. We've already far exceeded ICH guidelines for required 1-year exposures, with over 200 patients having been treated for 1 year or longer. We also have well over 100 patients who've been treated with pimavanserin for at least 2 years and through a similar extension study in connection with our earlier Phase II trial, our longest single-patient exposure exceeds 8 years. Overall, our long-term safety data provides support for the potential of pimavanserin to offer significant advantages relative to current antipsychotics frequently used off-label for the treatment of PDP. We continue to be very pleased with the progress in our PDP development program and remain on track for planned NDA submission near the end of 2014. As we continue with the remaining PDP program activities, we plan to hold standard pre-NDA meetings with FDA to discuss our plans for the NDA submission. Given the progress in our CMC program, our plan is to have initial 3-month stability testing data on our registration batches available for holding our separate CMC pre-NDA meeting. We expect to complete these FDA interactions by next spring, well in advance of our planned NDA submission. In parallel, we are also moving forward with efforts to define the path to registration in the EU. We expect to complete a series of interactions with regulatory representatives from several EU member states this fall and to establish the requirements of the path to registration in the EU by mid-2014. Let me now turn to our Alzheimer's disease psychosis or ADP program with pimavanserin. As Uli alluded to earlier, we are now completing the final stage of study start-up activities and are preparing to initiate our Phase II ADP trial this month. This trial, which we refer to as the -019 Study, is a randomized, double-blind, placebo-controlled study designed to examine the efficacy and safety of pimavanserin in about 200 patients with ADP. I'm delighted to announce that we will be conducting the study through a large network of research care facilities, established as part of the Biomedical Research Centre for Mental Health at King's College, London. Our principal investigator is Dr. Clive Ballard, Professor of Age-Related Diseases at King's College and a renowned clinician in the field of Alzheimer's disease. We believe that conducting the -019 Study at this high-quality medical institution will provide several advantages in study execution: a unique clinical research infrastructure, including a geographically-focused network of nursing care homes, is expected to provide access to a pool of well-characterized ADP patients and enable us to incorporate many design features from our successful PDP pivotal trial into the -019 Study design. Following a screening period that includes brief psychosocial therapy, patients will be randomized on a 1:1 basis to receive either 40 milligrams of pimavanserin or placebo once daily for 12 weeks. The -019 Study will assess several key efficacy endpoints, including the use of neuropsychiatric inventory, the nursing home or NPINH scale to measure psychosis, agitation, aggression and sleep nighttime behavior, as well as additional exploratory endpoints. The key efficacy endpoints were based on the change of week 6 from baseline, which is a standard duration for psychosis studies. The full 12-week treatment period will allow us to explore additional endpoints, including the cognitive status of patients. We will be looking to show that we do not worsen cognition relative to placebo-treated patients. In contrast, currently marketed antipsychotics have been linked to cognitive decline in elderly patients with dementia-related psychosis. The 12-week treatment period will also provide the opportunity for demonstration of durability response to pimavanserin beyond the 6-week placebo-controlled period, tested in our pivotal PDP efficacy trial. We are very excited to move forward the ADP study and look forward to sharing more details when we initiate the study. We believe that this study positions us to thoroughly explore the potential benefits of pimavanserin in this patient population and to inform us on designs for future studies in this program. Because of its selective mechanism action of favorable safety profile observed to date in elderly patients with Parkinson's disease, we believe that pimavanserin's profile may be ideally suited to address the need for a novel ADP treatment that is safe, effected -- effective and well-tolerated. I'll turn the call back over to Uli now.